Toothbrush



FIG. 1 is a front view of a toothbrush showing the new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is an enlarged top side view thereof;

FIG. 6 is an enlarged bottom side view thereof; and,

FIG. 7 is a perspective view of front top and left side thereof.

The shade lines in the Figures show contour and not surface ornamentation.

The broken lines in the Figures show portions of the toothbrush, and form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush, as shown and described. 